Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
1zu33.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 02:37:03 UTC · ↺ Refresh
MX Hostnames
- mx01.ionos.de
- mail.1zu33.com
- mx00.ionos.de
MX Priorities
- mx00.ionos.de: 10
- mail.1zu33.com: 99
- mx01.ionos.de: 10
A / AAAA Records
- 217.160.0.123 ↩ 217-160-0-123.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::29a ↩ 2001-08d8-100f-f000-0000-0000-0000-029a.elastic-ssl.ui-r.com
Mail Server IPs
- 212.227.15.41 ↩ mx00.kundenserver.de
- 82.135.30.106 ↩ mail.einszu33.de
- 217.72.192.67 ↩ mx01.kundenserver.de
SOA Record
Raw SOA
ns1059.ui-dns.org hostmaster.1and1.com 2018081049 28800 7200 604800 600
Primary NS (mname)
ns1059.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2018081049
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1123.ui-dns.biz
ns1034.ui-dns.de
ns1066.ui-dns.com
ns1059.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- v=verifydomain MS=3114954
- google-site-verification=E2295WQEiw8JmmVdkBugWb04n9HLMwqDiW2Tk7ASkF8
- openai-domain-verification=dv-JES9ZZ5GCYvj48J9M1jJsHAW
- SPFv=spf1 include:_spf-eu.ionos.com ~all
- MS=ms74235668
Full email verification for 1zu33.com
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